quite strange if NgSwitch is in build directive of angular so why am I getting this error,
even I try to include NgSwitch directive manually but the is same.
here are my project dependencies
"dependencies": {
"@angular/animations": "^5.2.9",
"@angular/common": "^5.0.0",
"@angular/compiler": "^5.0.0",
"@angular/core": "^5.0.0",
"@angular/forms": "^5.0.0",
"@angular/http": "^5.0.0",
"@angular/platform-browser": "^5.0.0",
"@angular/platform-browser-dynamic": "^5.0.0",
"@angular/router": "^5.0.0",
"@ionic/storage": "^2.1.3",
"bootstrap": "^4.0.0",
"codelyzer": "^4.1.0",
"core-js": "^2.4.1",
"ngx-bootstrap": "^2.0.3",
"ngx-loading": "^1.0.14",
"ngx-toastr": "^8.3.0",
"rxjs": "^5.5.2",
"zone.js": "^0.8.14"
},